Trading Infrastructure
High-performance trading infrastructure for Solana and EVM: MEV and arbitrage bots, sniper and copy-trading systems, and low-latency Rust backends for mission-critical trading pipelines.
I'm Roswelly, a Rust smart contract and backend developer specializing in trading infrastructure and performance-sensitive systems. I build MEV and arbitrage bots, migration snipers, and copy-trading engines that land transactions in the same block as the target event - backed by Rust, Tokio, Redis, PostgreSQL and Kafka.
Solana trading infrastructure
Jito-bundled arbitrage and sniper bots consuming Helius gRPC and Jito shredstream, routing via Jupiter aggregator v6, with Nozomi as a secondary inclusion path. Hot paths are written in Rust for predictable p99 latency.
Migration snipers that co-bundle with the liquidity-add transaction (e.g. PumpSwap → Raydium CPMM) to capture the first tick in the new pool, and copy-trading systems that mirror target wallets in the same block.
EVM trading infrastructure
Mempool-aware sniper and migration bots on BNB Chain, Polygon and Avalanche, with rug/honeypot heuristics and block-level risk controls.
Prediction market bots on Polygon with CLOB integration, live PnL and exposure risk checks.
Backend stack
Rust (Tokio, Axum / Actix) for latency-critical services. Node.js / TypeScript for orchestration and dashboards. Redis for hot state, PostgreSQL for durable state, Kafka for async pipelines, gRPC / WebSockets for real-time data.
Observability covers inclusion rate, signal-to-fill latency, and PnL per strategy, with alerts on drift so regressions are caught in minutes, not days.
Related case studies
CaesarX - Advanced Solana Trading Platform
Solana trading platform featuring real-time token analytics, automated trading tools, token scanner and portfolio tracker, token deployer, reward system, multi wallet management.
Polymarket Trading Bot
Polymarket trading bot for Polymarket prediction markets on Polygon. This bot provides both interactive and automated trading capabilities with comprehensive market analysis, order management, and risk controls
Solana Trojan Bot forked
Forked Solana Trojan bot with copy trading and sniper features on pumpfun and bonkfun, raydium. Implemented manual buy /sell on pumpfun. Ensuring in the same block and capturing new token mint By using Jito shredstream and Helius RPC and Jupiter aggregator v6. wallet keypair generation securely
Four.meme sniper | migration sniper bot
After detecting new tokne mint and check whitelist and buy and sell the token in the same block including rug and risk detection. While detecting new token is migrated from four.meme to PancakeSwap, snipes migrated token.
Solana Arbitrage Bot
Solana Arbitrage Bot with Jupiter AggregatorIntegration A high-performance, real-time arbitrage bot for Solana that identifies and executes profitable price differences across multiple DEXs using Jupiter Aggregator v6, gRPC streaming, Jito bundles, and advanced MEV strategies.
PumpSwap Migration Sniper Bot
Solana Migration Sniper Bot can sniper tokens from PumpSwap to Raydium CPMM within the same transaction bundle as the liquidity add to gain a speed advantage over manual traders.
Frequently asked questions
What does 'same-block execution' actually require?
On Solana: co-bundling with the target transaction via Jito, consuming Helius gRPC / Jito shredstream to react within the same slot, and keeping your signer hot. On EVM: mempool monitoring, optimized gas/tip calculations, and private relays when needed.
Can you build a Solana MEV / arbitrage bot from scratch?
Yes. I've shipped Rust-based arbitrage bots using Jupiter v6 for routing, Jito for inclusion, and Helius gRPC for data. They find and execute cross-DEX opportunities with controlled risk and clear PnL attribution.
Do you handle operational risk in trading systems?
Yes. Risk limits (per-market exposure, per-block size caps, daily loss caps), kill-switches, structured logging, circuit breakers, and alerting on inclusion/latency/PnL drift are part of every system I ship.
Other specializations
Hire a Rust smart contract & trading infrastructure specialist
Planning a trading infrastructure project? Let's talk architecture, Rust smart contracts, and the low-latency backend to run it in production.
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